In the seven months since Windows 8 was introduced, it's seen its share of criticism, leaving many craving an update to Microsoft's first touch-based desktop OS. Now the company has officially responded to many concerns with the announcement of Windows 8.1, the first major point update to Windows 8. A preview version will be available towards the end of this month, and Microsoft's Jensen Harris showed off some of the new Windows 8.1 features in the video embedded below.